>>76215302for trains between nearby cities, you generally take amtrak, which you book in advance by card or paypal the same way you would a flight.
if california is already a trip, I think it's worth extending for a second event that week, compared to flying in for one thing and going home. and definitely a hotel near the event. something like a flight to LAX, amtrak from LAX to SAN, a flight home from SAN
